
Do you have a question about the B&K Reference 4420 and is the answer not in the manual?
Explains the amplifier's role as a compact, efficient two-channel power amplifier for audio/video systems.
Details the internal electronic circuitry, components, and power stages used in the amplifier's design.
Highlights technologies like toroidal transformers, discrete circuitry, and gold-plated connectors for enhanced performance.
Provides an illustration and identification of the amplifier's rear panel components and connectors.
Details the function and purpose of each numbered connection and control on the rear panel.
Explains how to set up remote muting using the amplifier's control input/output and daisy-chaining.
Describes the optional level controls for adjusting input sensitivity per channel.
Details the five-way binding posts for speaker connection and proper polarity.
Explains how to connect using RCA type unbalanced connectors from a preamplifier.
Describes using XLR type connectors for balanced line input from a preamplifier.
Provides guidance on planning cable runs, placement, and using separate power lines for optimal system efficiency.
Step-by-step instructions for connecting audio cables, speakers, and the power cord, including power-on sequence.
Lists common problems, their possible causes, and solutions for the amplifier.
Instructions on how to clean the amplifier's exterior and connectors safely.
Details the five-year warranty terms, coverage, exclusions, and user rights.
Outlines the process for returning equipment for service, including obtaining an RA number.